A National Weather Service wind advisory for the mountains will be in effect from 2 p.m. Wednesday until 1 a.m. Thursday. Winds of 20 to 35 miles per hour and gusts up to 60 mph are expected in mountain areas such as Julian and Pine Valley.

“A cold front will move through Southern California today and will bring strong westerly winds to the region,” according to the weather service. “Strongest winds will be in the mountains and deserts, particularly on ridgetops, desert slopes and parts of the high deserts this afternoon and evening.”

Dust and sand were expected to affect motorists’ visibility during the advisory periods, and the gusts may cause minor damage to trees, and airborne objects could also cause damage.

The cold front is also expected to bring cooler and cloudier weather to San Diego County.

High temperatures Wednesday are expected to range from 67 to 72 degrees at the beaches, where minor tidal overflow is also possible, 69 to 74 degrees in the valleys, 66 to 73 degrees in the mountains 82 to 87 degrees in the deserts. Temperatures are expected to be more than 10 degrees lower in the mountains and deserts Thursday.